Cohomology of Groups and Ends of Covering Spaces
This chapter is about the cohomology modules H*(G, RG) and their connection with asymptotic homological invariants of the group G. The first interesting case involves the classical subject of ends of spaces and ends of groups. Our treatment of homology and cohomology of ends in Part III enables us to begin building a theory of “higher ends” of groups which will occupy much of the rest of the book.
KeywordsExact Sequence Simplicial Complex Cayley Graph Short Exact Sequence Inverse Limit
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